baber/WOPTO huggingface dataset:
Patent KR-20000007933-A (KR)
Title: Control method of intellectual property right mediating system
Inventor: LEE DUK ROG
IPC: G06Q30/06
Filed: 1998-07-08
Abstract: PURPOSE: A method is provided to offer various services such as an intellectual property right purchase and sale and application by connecting a client with an intellectual property right service provider using an internet communication network. CONSTITUTION: Plural client computers(100)(200) are electrically and electronically accessed to a server computer(300) through the internet communication network. Herein, The server(300) is electrically and electronically accessed to a computer for the intellectual property right business, including an application program, various data bases and adjacent devices for supplying various services such as the intellectual property right purchase and sale, recommendation for related products, application and data search, and so on.
Patent KR-20000009089-A (KR)
Title: High speed decoding method and apparatus
Inventor: KIM IL JUNG
IPC: H03M7/00
Filed: 1998-07-21
Abstract: PURPOSE: The method is to accomplish ending of all frame modes by itself without help from host. An apparatus for accomplishing such high speed decoding method is also provided. CONSTITUTION: The decoding method comprises (a) a step of determining whether message data of frame has sequential message data, (b) a step of transmitting decoded vector data and decoded message data to the host in units of packet, if the message data of frame data has not sequential message data, (c) a step of transmitting decoded vector data and decoded message data to the host in units of packet, if the message data of frame data has sequential message data, (d) a step of determining whether carry bits included in the message data of frame data is predetermined level, (e) steps of receiving the frame data and its sequential frame data, and going to step (a) if the bits are not in the predetermined level, (f) a step of informing that all frame modes are completed, if the carry bits are predetermined level, and (h) a step of receiving the frame data which is designated according to collapse, following the step (f) or the step (b).
Patent KR-20000013022-A (KR)
Title: Voltage controller for car alternative generator
Inventor: CHOI JONG IN
IPC: H02K7/00
Filed: 1998-08-01
Abstract: PURPOSE: A voltage controller for a car alternative generator is provided to cut down developing time and cost and enhance productivity by partially changing a connector. CONSTITUTION: A stator assembly composed of a stator core bound by a stator coil is pressed and inserted into a cylindrical casing. A rotor shaft having a pulley is mounted in an internal room of the assembly. A spool bobbin is pressed and inserted into the rotor shaft. A rotor core having a plurality of rotor poles is coupled to an external room of the assembly to receive the spool bobbin. The voltage controller installed in one side of the alternative generator is divided into a rectangular housing and the connector coupled to one side of the housing.
Patent KR-20000013707-A (KR)
Title: System and method for synthesizing image by cell division
Inventor: KIM JIN HAN
IPC: H04N1/203
Filed: 1998-08-12
Abstract: PURPOSE: A system capable of making a synthesizing image having special synthesizing efficient every cells by dividing an image area to be synthesized into a plurality of cells according to configuring elements of an image to be synthesized, allotting different states to each cell according to characteristics of configuration elements of each cell, and synthesizing each cell and a method therefor are provided. CONSTITUTION: A system for synthesizing an image by a cell division, the system comprising: a cell divider(13) for receiving external original images to be synthesized and dividing an image area to be synthesized into a plurality of cells according to configuration elements of the original images; a cell state designating section(14) for checking a state of each cell divided by the cell divider(13) and designating a state of each cell according to characteristics of configuration element of each cell; and a synthesizing image producing section(15) for synthesizing the cells to produce a synthesizing image according to the state of each cell designated by the cell state designating section(14).
Patent KR-19980082032-A (KR)
Title: 차량용 어린이 안전의자
Filed: 1998-08-17
Abstract: 차량용 어린이 안전의자에 대해 개시한다. 
     차량용 어린이 안전의자에 있어서, 차량의 일반의자에 얹어지고, 차량의 안전밸트가 뒤측 상단에 형성된 밸트결합홈에 끼워져 고정력을 제공받으며, 바닥면의 중심에서 상측으로 소정높이 세워져 회전가능하게 설치된 주축을 갖는 베이스; 상기 베이스의 상면에 얹어지고, 베이스의 축과 결합되어 베이스의 축을 중심으로 회전되도록 하며, 어린이가 앉는 면이 소정의 형상으로 만곡된 시트부; 상기 베이스의 내면 소정위치에 결합되어 시트부가 회전되었을 때 회전된 상태를 유지시키기 위한 시트부로크수단; 상기 시트부의 후단부에 소정각도 회전되도록 세워져 결합되고, 어린이의 등이 기대지는 면이 소정의 형상으로 만곡된 등받이; 상기 시트부에 대해 등받이가 소정의 각도로 회전되면, 그 상태를 유지하도록 하기 위해 등받이의 뒷면 소정위치에 설치된 등받이로크수단; 상기 시트부와 등받이부의 소정위치에 결합되는 안전밸트로 이루어진다. 
     따라서, 본 발명은 어린이가 전용의자에 착석했을 경우, 등받이와 시트부의 각도조절로 인하여 편안한 착석상태를 유지하게 되고, 가슴보호대의 형상을 개량하여 돌발상황에서 어린이의 부상을 최소화 하며, 쟁반을 설치하여 어린이가 전용의자에 숙달되도록 할 뿐만 아니라, 야외나 가정에서도 전용의자의 효용가치를 높일수 있도록 한 유용한 발명이다.
Patent KR-20000018974-A (KR)
Title: Pipe channel repair method for supporting inner sustain ring and repair element
Inventor: YU JUNG SIK
IPC: E03F3/06
Filed: 1998-09-07
Abstract: PURPOSE: A pipe channel repair method is provided to give the method for saving repair cost, to have good quality of repairing and a simple repair work using a simple equipment. CONSTITUTION: A pipe channel repair method has the steps of: inserting an expansion/contraction rubber(5) when there is a crack between connections of a pipe channel(1) to be still water by expanding the volume of the expansion/contraction rubber several times by itself when leaking; finishing with quick freezing waterproof mortar(7) on it to improve the being still water effect; covering 30¯40 cm width of a metal plate or plastic plate(11) for using as a waterproof and supporting plate to cover an abnormal part to play a role of an exposure face; installing a band shaped or a rod shaped inner support ring(15) to firmly fix the exposure face at the inner face of the pipe channel.
Patent KR-20000020338-A (KR)
Title: Sulphuric acid zinc aqueous solution secondary battery containing manganese dichloride and carbon powder
Inventor: OH SEUNG MO
IPC: H01M10/08
Filed: 1998-09-16
Abstract: PURPOSE: A sulphuric acid zinc aqueous solution secondary cell containing manganese dichloride and carbon powder is provided to develop an electrode and electrolytic system having long-term charge/discharge stability and reversibility. CONSTITUTION: A secondary cell comprises an anode, a cathode, and electrolysis. Anode material is a mixture of manganese dioxide with electric conductive material of about 3 to 15 gram percent out of total gram of the anode material. Cathode material is zinc powder. The electrolysis is sulphuric zinc aqueous solution of about 0.5 to 3 mol. Manganese salt is added to one or two and more of the anode material, the cathode material, and the electrolysis. Carbon powder is mixed with the cathode material.
Patent KR-20000025096-A (KR)
Title: Apparatus for absorbing dynamically vibration of rotation body
Inventor: LEE SUNG JIN
IPC: G11B17/028
Filed: 1998-10-08
Abstract: PURPOSE: An apparatus for absorbing dynamically a vibration of a rotation body is provided to absorb a vibration produced at the high-speed rotation of a rotation body regardless of an unbalance mass distribution. CONSTITUTION: A vibration absorbing apparatus for absorbing a vibration generated at a high-speed rotation of a rotation body comprises a mass body(130) and a connection part composed of plural ribs and an elastic ring(140). The connector connects the mass body to the rotation body(130) so as to be shifted in the direction of rotating radius of the rotating body. The mass body absorbs a vibration owing to the rotation of the rotation body while being shifted elastically in the rotation radius direction of rotating radius. The mass body includes a pair of mass members formed so as to be opposed to each other.
Patent KR-20000025545-A (KR)
Title: Damper for burner and structure for fixing nozzle
Inventor: CHO SEONG SIK
IPC: F23D14/46
Filed: 1998-10-13
Abstract: PURPOSE: A damper for a burner is provided to simplify the structure of fixing a damper and a nozzle and to exactly place the center of the nozzle in the center of a mixing pipe unit. CONSTITUTION: A nozzle(70) is connected to a damper(60), and then the damper is connected with a mixing pipe(51) of a burner body(50). The damper is inserted into the mouth of the mixing pipe, then a position set unit(54) is inserted into a position set slot(62). A fixing hole(55') for a screw on a fixing unit(55) is connected with a screw hole of the damper with a screw. An additional unit for fixing the damper is not required by exactly connecting the damper to the mixing pipe. Therefore, the preparation of a burner is simplified and the manufacturing costs are reduced.
Patent KR-19990037243-A (KR)
Title: 기록 장치, 기록 방법, 재생 장치, 재생 방법, 기록/재생 장치,기록/재생 방법, 표시 매체 및 기록 매체
IPC: G11B27/34
Filed: 1998-10-21
Abstract: 사용자가 입력 장치를 작동시킴으로써 광디스크 장치로부터 광디스크를 배출하는 명령을 입력할 때, CPU는 디스크의 배출 직전에 액세스된 위치 및 동작 모드 등의 정보를 리쥼-기능 관련 정보로서 RAM 장치에 기록한다.  리쥼-기능 관련 정보는 기입(write-in) 채널 버퍼, 스위치, ECC 회로, RF & 복조/변조 회로 및 광 헤드에 의해 기록될 광디스크 상으로 공급된다.  따라서, 디스크가 광디스크 장치로 재삽입될 때 광디스크 장치로부터 디스크의 배출 직전에 액세스된 광디스크 상의 위치로 액세스될 수 있게 한다.
Patent KR-20000031371-A (KR)
Title: Method for monitoring etched amount of semiconductor substrate through measuring consumed amount of photoresist
Inventor: CHO HYEONG SEOK
IPC: H01L21/66
Filed: 1998-11-05
Abstract: PURPOSE: A method for monitoring the etched amount of a semiconductor substrate is provided to monitor the etched degree of the semiconductor substrate without cutting a wafer. CONSTITUTION: A monitoring method of etched amount is formed an insulating film, a material film and a photoresist film pattern(16) on a semiconductor substrate(10) sequentially. The partial thickness of the material film, the insulating film, and the semiconductor substrate are etched by using the photoresist film as a mask after measuring the pattern of photoresist film on an activated region. The partial thickness of the photoresist film is consumed at the etching process. The thickness of the pattern of the photoresist film is re-measured, and the consumed amount of the pattern of the photoresist film is calculated before and after etching. Thereby the time and costs are reduced and a throughput is improved because a wafer is not needed to cut for measuring the etched amount of the substrate by the monitoring method of etched amount of the semiconductor substrate through the measuring of the photoresist consumed amount.
Patent KR-20000040485-A (KR)
Title: Method for generating visual rhythm using pixel sampling
Inventor: LEE JIN HO
IPC: H04N7/18
Filed: 1998-12-18
Abstract: PURPOSE: A method for generating visual rhythm using pixel sampling is provided to express the video image editing effect visually to facilitate the video image process and to increase process speed. CONSTITUTION: A method for generating visual rhythm using pixel sampling includes first and second steps. At the first step, pixels of each frame of an arbitrary video image composed of pixel values are sampled partially. At the second step, the visual rhythm summarizing the change of the arbitrary video image is generated using the sampled pixels. At the first step, pixel blocks of each frame are further inverse huffman transformed(303), inverse run-length transformed, and inverse quantized sequentially, and only DC coefficient is restored.
Patent KR-20000041020-A (KR)
Title: Circuit for detecting battery types in mobile communication terminal
Inventor: CHOI SEONG JIN
IPC: H04B1/40
Filed: 1998-12-21
Abstract: PURPOSE: A circuit for detecting battery types in a mobile communication terminal is provided to recognize many battery types according to quantities and components through one identification(ID) port, by using an analog to digital converter in a base-band analog processor(BBA) of the mobile communication terminal to measure a battery ID port voltage used in the mobile communication terminal. CONSTITUTION: A circuit for detecting battery types in a mobile communication terminal comprises a battery(10), a level converter(20), a base-band analog processor(BBA)(30), and a mobile station modem(MSM)(40). The battery(10) generates a power voltage to supply a corresponding voltage necessary for each composition block of the mobile communication terminal. The level converter(20) converts an ID voltage output from the battery ID port into a DC level voltage recognized by an analog to digital converter(ADC) in a base-band analog processor(BBA). The BBA(30) composes the ADC, and converts the converted DC level voltage into a digital data. And, the MSM(40) classifies battery types according to quantities and components of the digital data output in the BBA, and executes a suitable battery operation program for types.
Patent KR-19990063431-A (KR)
Title: 세탁기
IPC: D06F33/02
Filed: 1998-12-24
Abstract: 본 발명은, 교반(攪拌) 날개를 회전시키는 일 없이 급수(給水) 개시와 동시에 세제를 용해시키고, 또한 용해시킨 세탁수(洗濯水)를 교반 날개를 회전시키는 일 없이 세탁물 전체에 골고루 살수(撒水)함으로써, 세탁 시간의 유효 활용 및 세정력의 확보나 세탁 얼룩의 저감을 도모함과 동시에, 세탁물의 손상이나 엉킴을 저감시키는 것을 목적으로 한다. 
     외조(外槽)(1)내에 세탁 겸 탈수조(2)를 회전이 자유롭게 마련하고, 이 세탁 겸 탈수조(2)의 안쪽 바닥부에 교반 날개(8)를 회전이 자유롭도록 마련하여, 세탁 겸 탈수조(2)를 모터(5)에 의해 구동시키고, 제어 수단에 의해 세탁 겸 탈수조(2)내에 급수하는 급수 밸브(10), 모터(5) 등의 동작을 제어하여 행정을 제어한다.  제어 수단은, 급수하면서 세탁 겸 탈수조(2)를 회전시키는 제 1 행정과, 세탁 겸 탈수조(2)의 회전에 의해 외조(1)와 세탁 겸 탈수조(2) 사이로부터 세탁 겸 탈수조(2)내로 세탁수를 살수하는 제 2 행정을 갖는 것이다.
Patent KR-20000045245-A (KR)
Title: Method for automatically changing mobile terminal state
Inventor: KIM HYEON GYU
IPC: H04B7/24
Filed: 1998-12-30
Abstract: PURPOSE: A method for automatically changing a mobile terminal state is provided to automatically change a mobile terminal state to an oscillation or power-off state when entering a public place or a conference room, and to restore a mobile terminal state to a state before change when coming out from the places. CONSTITUTION: A method for automatically changing a mobile terminal state comprises the steps of: deciding an alarm/oscillation mode and a power on/off mode a mobile terminal itself, when the mobile terminal receives an optional signal; changing to an oscillation mode state when the alarm/oscillation mode of the mobile terminal is an alarm mode state as a result of the decision, and changing to a power off mode when the power on/off mode of the mobile terminal is a power on mode. The method further comprises the step of restoring an alarm/oscillation mode and a power on/off mode to a step before first receiving the optional signal by the mobile terminal.
Patent KR-20000045885-A (KR)
Title: Method for creating gate electrode of tungsten poly-cide
Inventor: PARK SANG WUK
IPC: H01L21/28
Filed: 1998-12-30
Abstract: PURPOSE: A method for creating gate electrode of tungsten poly-cide is provided to improve yield of semiconductor device by suppressing a surface flaking state between a side of poly-cide gate and a spacer oxidation layer and to restrain blow up of tungsten silicide level. CONSTITUTION: A gate oxidation layer, a doped poly crystal silicon membrane, and a tungsten silicide are created by sequence on a semiconductor wafer. After masking a gate electrode by silicide, a poly crystal silicon membrane, and a gate oxidation layer using a gate electrode mask, low density impurities are inserted by ion implantation method. The tungsten silicide is changed hexagonal lattice structure into square lattice structure by thermal process of the gate electrode in 600¯900°C temperature. A conductive covered layer, SiNx, is built and a spacer oxidation layer is made on the side of poly-cide. A wafer is loaded in a reaction chamber after setting the temperature(300¯500°C) to create the spacer oxidation layer(A). The temperature is raised until 600¯800°C and SiH4+NH3 CVD(Chemical Vapored Deposition) method is operated(A',B). After raising the temperature about 700¯900°C, the spacer oxidation layer vaporing process is enforced(B',C).
Patent KR-19990044020-A (KR)
Title: Compositions containing 1,3,5-triazine carbamates and epoxy compounds
Inventor: GUPTA RAM BABOO
IPC: C08F8/30
Filed: 1996-08-28
Abstract: Curable compositions which include a 1,3,5-triazine carbamate crosslinker and a polyfunctional epoxy resin as well as their uses in coatings are disclosed. The compositions may additionally contain a co-crosslinker and/or a polyfunctional hydroxy group containing material. Reduction in the formaldehyde emission levels relative to aminoplast resin based coatings can be achieved without loss of the ultimate film properties.
Patent KR-20000064991-A (KR)
Title: 살균 유체 용기용 공압출된 다층 필름
IPC: A61J1/05
Filed: 1998-02-17
Abstract: 폴리올레핀으로 완전히 형성되고, 성형, 충전 및 밀봉 공정에 의해 주입 용액 용기의 제조에 특히 적합한 본 발명의 필름, 호일, 쉬이트 및 유사한 유연성 투명재는, 상이한 중합체 조성으로 이루어진 2개의 말단층 (A) 및 (C)와, 에틸렌 함량 및 연화온도의 구배를 갖는 "n"개의 중간 기층 B1, B2...Bi...Bn을 포함한다.
Patent KR-20000010900-A (KR)
Title: Omnidirectional imaging apparatus
Inventor: NAYAR SHREE K
IPC: H04N5/225
Filed: 1997-04-30
Abstract: PURPOSE: An omnidirectional image apparatus provides a method which can project an image of a substantially hemispherical scene as viewed from a single viewpoint. CONSTITUTION: An omnidirectional image apparatus(130) comprises of; paraboloid shaped reflector(135) positioned to orthographically reflect an image of the substantially hemispherical scene, being set up on the board(140); an image sensor(110) positioned to receive the orthographically reflected image; a telecentric lens(113) operating to eliminate all beams of light being not vertically on the lens, i.e., the background beam of light not forming a part of an orthographic reflection the hemispherical scene. A method for projecting an image of hemispherical scene as viewed from a single viewpoint includes the following steps. The first step projects a collimated beam of light modulated with the image from the reflection scene shaped hemisphere. The second step orthographically reflects the collimated beam of light modulated with the image to the reflection scene shaped hemisphere such that a single viewpoint is same with the focal point of the orthographic reflection scene.
Patent KR-20000016198-A (KR)
Title: System for preparing glass fiber pellets
Inventor: STRAIT MICHAEL A
IPC: C03B37/01
Filed: 1998-03-20
Abstract: PURPOSE: A method and a device for an efficient pellet formation is provided to make an actually uniform glass fiber pellet having the shape and density supplying an excellent flowing property in a controllable method. CONSTITUTION: A system for making densified glass fiber pellets from chopped segments of multi-filament glass strand is described. The densified pellets may be advantageously produced by hydrating chopped glass strands (24) and then pelletizing them by tumbling in a rotary drum (41), and densifying the resulting pellets by tumbling in a rotating zig-zag or undulating tube (42) for a period of time sufficient to increase their density but insufficient to degrade the fibers to a point where composite articles formed from such pellets have lower tensile or impact strengths than comparable composite articles formed from unpelletized strand segments.
Patent KR-20000022134-A (KR)
Title: Multi-layer tubing assembly for fluid and vapor handling systems bundy corporation
Inventor: HSICH HENRY S
IPC: B29C48/09
Filed: 1997-07-03
Abstract: PURPOSE: A coextruded multi-layer tubing assembly is provided which has an inner fluoroplastic permeation resistant layer, a middle adhesive layer, and a non-vulcanized rubber-like multiphase polymer cover layer. CONSTITUTION: A tubing assembly includes an extruded innermost semi-conductive fluoroplastic layer. The fluoroplastic is made semi-conductive by mixing it with 1% to 10% by weight of conductive carbon black. Metallic conductive fillers such as silver, copper or steel are utilized. The tubing assembly has a surface resistivity in the range of about 10 to 1000000 ohm/sq, with a preferential range of 100 to 100000 ohm/sq. Herein, Suitable fluoroplastics include ETFE(ethylene tetrafluoroethylene), THV(a terpolymer of tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride), PVDF(polyvinylidene fluoride) or blends of these fluoroplastics. An inner permeation-resistant fluoroplastic layer coextrudable at temperatures below 600 degrees Fahrenheit is coextruded with and surrounds the innermost semi-conductive layer.
Patent KR-20000065249-A (KR)
Title: 열가소성 수지 조성물
IPC: C08L71/10
Filed: 1997-09-09
Abstract: 본 발명은 물질 (B) 를 액체 상태로 유지시킬 수 있는 25 내지 300 ℃ 범위내에 해당하는 온도에서 혼합을 실행하는, 열가소성 수지 (A) 와 열가소성 수지 (A) 용 첨가제인 하나 이상의 비중합성 액상 물질 (B) 의 혼합 단계로 이루어진 방법으로 제조되는 것을 특징으로 하는 열가소성 수지 조성물에 관한 것이고, 조성물은 수지 (A) 를 물질 (B) 에 용해 또는 팽윤시키는 것으로 이루어진 방법으로 제조되는 것과 실질적으로 동일하다.     수지 재료의 성형은 제품에 우수한 외관, 내광성 및 기계적 특성을 제공하여, 수지 조성물을 OA 기기용 부품, 가전 제품용 부품, 및 전기 및 전자 부품을 포함하는 각종 분야에서 성형 재료로서 유리하게 사용할 수 있다.     더욱이, 수지 조성물이 기타 성형 수지와 혼합되는 마스터배치로서 특히 유용하다.     마스터배치로서 수지 조성물의 용도가 마스터배치 및 기타 성형 수지를 포함하는 수지 조성물의 용융성형을 가능하게 하고 마스터배치내 함유된 수지의 열열화를 감소시킬 수 있어서, 상기 특성이 우수한 성형체를 제공한다.
Patent KR-20000055225-A (KR)
Inventor: KIM JUN GI
IPC: H01L21/28
Filed: 1999-02-04
Abstract: PURPOSE: A wire structure of a semiconductor device and forming method thereof is to suppress electromigration and increase of resistance in a wire of a semiconductor device. CONSTITUTION: A wire structure of a semiconductor device comprises: a main wire material layer(72); a first conductive layer(73) reacted with the main wire material layer and containing an amount of nitrogen smaller than the nitrogen amount of the stoichiometry, for improving the directionality and adhesive force of the main wire material layer; and a second conductive layer(74) disposed on the first conductive layer and made of the same material with the first conductive layer. The first and second conductive layers are stacked on the main wire material in the named order to improve via resistance and oxidation of the main wire material layer and are then thermally annealed.
Patent KR-19990072422-A (KR)
Title: 전자방출장치및그제조방법
IPC: H01J1/304
Filed: 1999-02-04
Abstract: 본 발명은 방출된 전자(電子)를 소정의 방향으로 편향시킬 수 있는 동시에, 작은 구동 전압으로도 양호하게 전자를 방출할 수 있는 전자 방출 장치 및 그 제조 방법을 제공한다. 
     본 발명에 관한 전자 방출 장치는 기판 상에, 보조 전극, 제1의 절연층, 제1의 게이트 전극, 제2의 절연층, 에미터 전극, 제3의 절연층 및 제2의 게이트 전극이 이 순서로 적층되어 이루어진다.  그리고, 이 전자 방출 장치는 상기 제1의 절연층, 상기 제1의 게이트 전극, 상기 제2의 절연층, 상기 에미터 전극, 상기 제3의 절연층 및 상기 제2의 게이트 전극을 관통하는 동시에 저면에 상기 보조 전극이 노출되는 개구공(開口孔)이 형성되어, 상기 제1의 게이트 전극이 상기 에미터 전극보다 상기 개구공의 중심선을 향하여 돌출하도록 형성되어 있다.
Patent KR-20000056712-A (KR)
Title: Plasma display panel
Inventor: PARK CHANG BAE
IPC: H01J11/14
Filed: 1999-02-25
Abstract: PURPOSE: A plasma display panel is provided to integrally form a black matrix layer of a same material at a boundary portion of a discharge cell and between a common and scanning electrode, and a bus electrode, thereby simplifying a fabricating process. CONSTITUTION: A plasma display panel(20) comprises a front face substrate(21a), a common and scanning electrode(22a,22b) formed into a stripe type on a lower face of the front face substrate to be alternately arrange parallel to each other, a bus electrode(23) formed at a lower face of the common and scanning electrode to have a width which is wider than that of the common and scanning electrode, and a black matrix layer(200) formed among a boundary portion of a discharge cell, the common and scanning electrode, and the bus electrode. In the display panel, a thickness of the black matrix layer formed between the common and scanning electrode and the bus electrode is thinner than that of the black matrix layer formed between at the boundary portion of the discharge cell.